We have ridden both versions, plus up here in Vancouver BC Canada, we have the same ride, but its called Flyin over Canada! They do layivers at halloween and christmas too, and switch out to the versions that play in Soarin! So, on the California version, cruising over the forest up the river scene there is a pine smell, sometimes. Over the orange groves is orange smell, again sometimes. Up here in the Christmas version you fly over Santas village at the end which is really quite cool, and there is gingerbread smell, sometimes! Lol!! I dont know why you get the smells sometimes and not others, the machine runs out of juice? Lol!! In the World version I dont remember any smells, so maybe the machine was out of juice? Or there isnt any? I will find out in 2 weeks! Yay!!! I am going to google it see what the internet says! Either way, its an awesome ride and always worth it to us, to ask to be on the next ride if need be, to sit in the center for the best view